2006 Kia Optima vs. 2005 Nissan X-Trail
To start off, 2006 Kia Optima is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Nissan X-Trail. In addition, the cost of maintenance, including insurance, on 2005 Nissan X-Trail would be higher. At 2,671 cc (6 cylinders), 2006 Kia Optima is equipped with a bigger engine. In terms of performance, 2006 Kia Optima (170 HP @ 6000 RPM) has 32 more horse power than 2005 Nissan X-Trail. (138 HP @ 6000 RPM). In normal driving conditions, 2006 Kia Optima should accelerate faster than 2005 Nissan X-Trail. With that said, vehicle weight also plays an important factor in acceleration. 2005 Nissan X-Trail weights approximately 28 kg more than 2006 Kia Optima.
Because 2005 Nissan X-Trail is four wheel drive (4WD), it will have significant more traction and grip than 2006 Kia Optima. In wet, icy, snow, or gravel driving conditions, 2005 Nissan X-Trail will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2006 Kia Optima (245 Nm @ 4000 RPM) has 53 more torque (in Nm) than 2005 Nissan X-Trail. (192 Nm @ 4000 RPM). This means 2006 Kia Optima will have an easier job in driving up hills or pulling heavy equipment than 2005 Nissan X-Trail.
Compare all specifications:
| 2006 Kia Optima | 2005 Nissan X-Trail | |
| Make | Kia | Nissan |
| Model | Optima | X-Trail |
| Year Released | 2006 | 2005 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 1998 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 170 HP | 138 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 245 Nm | 192 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 86.8 mm | 89 mm |
| Engine Stroke Size | 75 mm | 80.3 mm |
| Engine Compression Ratio | 10.0:1 | 9.9:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1487 kg | 1515 kg |
| Vehicle Length | 4730 mm | 4520 mm |
| Vehicle Width | 1820 mm | 1770 mm |
| Vehicle Height | 1420 mm | 1760 mm |
| Wheelbase Size | 2710 mm | 2630 mm |
| Fuel Tank Capacity | 65 L | 60 L |
